Steam-trap.



No. 722,193. PATENTED MAR-3, 1903. J. WBSTLEY.

STEAM TRAP.

APPLIUATIQN FILED JULY 28, 1902.

N0 MODEL. 2 SHEETS-SHEET 1.

No. 722,193. PATENTED MAR. 3, 1903. J. WESTLEY. STEAM TRAP. APPLiOATION FILED JULY 28, 1902.

110 MODEL. F- I c. 3 QSHEBTS-SHIEET 2.

ll irnn STATES Arn'r OFFICE.

JAMES WVESTLEY, OF LEVENSHULME, ENGLAND, ASSIGNO R OF TWO-THIRDS TO FREDERICK FOSTER AND VVIL'LIAM RHODES BOOTLAND, OF MAN- CHESTER, ENGLAND.

STEAM-TRAP.

SPECIFICATION forming part Of .Letters Patent NO. 722,193, dated March 3, 1903.

Application filed July 28, 1902. Serial No. 117,351. (No model.)

To aZZ whom it may concern:

Be it known that I, JAMES WESTLEY, brassfounder, a subject of the King of Great Britain and Ireland, residing at 1 \Vesley street,

5 Levenshu1me,in the county of Lancaster,Eng-

land,have invented an Im proved'Steam-Trap, (for which I have made application in Great Britain, No. 2,908, dated the 5th day of February, 1902,) of which the following is a specifi- IO cation. 7

My invention relates to steam-traps used for removing water of condensation from steam cylinders, cisterns, pipes, and the like, as is well understood.

The accompanying drawings clearly illustrate my invention.

Figure 1 shows the improved steam-trap in elevation, the chamber being shown in section. Fig. 2 is a plan view thereof. Fig. 3 is a sectional elevation on the line A B, Fig. 2. Fig. 4 is a sectional end view of the valve and seating of the trap. Fig. 5 is the valve in section, showing the valve off its seat.

In carrying my invention into efiect I provide a suitable metallic box or vessel a of any convenient size and shape, which is placed in communication with the steam cistern or pipe at 19. Live steam has direct access to the chamber a, and 1 construct the box sufficiently strong and fluid-tight to withstand the boiler or steam pressure.

The bottom of the trap is provided with a pipe to remove the Water flowing intothe trap from the steam pipe or cistern, the up per part of the pipe 0 being formed with the valve-seating (Z.

The pipe 0 is secured to the chamber a by means of nuts and is prevented from rotating by a feather q, occupying a gap in the bottom of the chambera.

I provide a valve 6 governing the valveseat, the valve being formed with or carrying rin gs f to guide the valve upon its seat. To operate this valve 6, I form the body of it with an aperture or slot g, within which is mounted a rotatable eccentric or cam h. The

ment of the eccentric.

ent from an inspection of the sectional view Fig. 3. I

As shown in Figs. 1 and 3, the water c0ntained within the chamber a of the trap is at its normal level,and the eccentric h operates to close the valve 6 upon its seat. Upon the upper part of the pipe or tube 0 is placed asleeve t', secured to the tube by means of a set-screw 9'. The sleeve 2' is formed with side cheeks 7t, which provide bearings for the pins Z of the eccentric h. The eccentric h abuts against the inner sides of the cheeks it. One of the cheeks 7c is bored out large enough to permit the passage of the eccentric h, the aperture being closed bya screwed plug m, which also receives one of the pins Z of the eccentric. To this projecting end of the pin Z I secure the arm n of a closed ball-float 0. The arm n is cranked, as shown in Fig. 2, to adjust the ball-float in a line with the valve. Before the ball-float is hermetically sealed I introduce therein a small quantity of water. When the trap is working, steam is generated from this water, maintaining a pressure in the ball about equal to the pressure on the outside, thus preventing the ball from collapsing under such outside pressure. The position of the eccentric h is arranged to close the valve when there is not a sufficiency of water within the trap to raise the ball-float to a certain height, as clearly shown in Fig. 3. The ballfloat gradually rises as water accumulates in the trap. A slight clearance is provided between the top of the slot 9 and the eccentric, so that the eccentric may turn to some extent as the ball-float rises without raising the valve off the seat.

In Fig. 5 the dotted line 0 indicates the center line of the ball-float when the valve is closed. ter line of the float when it has been lifted by a sudden influx of water. The eccentric is then rotated in the position shown in Fig. 5 and the valve 6 is lifted off its seat, the dotted circle showing the position of the eccentric when the valve is closed. The water is then rapidly drained out of the trap through the pipe 0 without any loss of steam, as be fore the water-level can be reduced to the The dotted line 19 indicates the cenre tated by the rise and fall ofa ball-float to 0perate the valve all arranged and acting in the manner and substantially as described and illustrated.

In Witness whereof I have hereunto set my hand in presence of two witnesses.

JAMES WESTLE Y.

Witnesses:

JOSHUA ENTWISLE, NORMAN KIERNAN. 

